Search Results - "Allaart, Marc"

COVID-19 Crisis Reduces Free Tropospheric Ozone Across the Northern Hemisphere by Steinbrecht, Wolfgang, Kubistin, Dagmar, Plass-Dülmer, Christian, Davies, Jonathan, Gathen, Peter Von Der, Deckelmann, Holger, Jepsen, Nis, Kivi, Rigel, Lyall, Norrie, Palm, Matthias, Notholt, Justus, Kois, Bogumil, Oelsner, Peter, Allaart, Marc, Piters, Ankie, Gill, Michael, Malderen, Roeland Van, Delcloo, Andy W., Sussmann, Ralf, Mahieu, Emmanuel, Servais, Christian, Romanens, Gonzague, Stübi, Rene, Ancellet, Gerard, Godin-Beekmann, Sophie, Yamanouchi, Shoma, Strong, Kimberly, Johnson, Bryan, Cullis, Patrick, Petropavlovskikh, Irina, Chouza, Fernando, Leblanc, Thierry, Strahan, Susan, Stauffer, Ryan M., Thompson, Anne M.

“…Throughout spring and summer 2020, ozone stations in the northern extratropics recorded unusually low ozone in the free troposphere. From April to August, and…”
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On instrumental errors and related correction strategies of ozonesondes: possible effect on calculated ozone trends for the nearby sites Uccle and De Bilt by Van Malderen, Roeland, Allaart, Marc A. F, De Backer, Hugo, Smit, Herman G. J, De Muer, Dirk

“…The ozonesonde stations at Uccle (Belgium) and De Bilt (the Netherlands) are separated by only 175 km but use different ozonesonde types (or different…”
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Impact of the COVID‐19 Economic Downturn on Tropospheric Ozone Trends: An Uncertainty Weighted Data Synthesis for Quantifying Regional Anomalies Above Western North America and Europe by Chang, Kai‐Lan, Cooper, Owen R., Gaudel, Audrey, Allaart, Marc, Ancellet, Gerard, Clark, Hannah, Godin‐Beekmann, Sophie, Leblanc, Thierry, Van Malderen, Roeland, Nédélec, Philippe, Petropavlovskikh, Irina, Steinbrecht, Wolfgang, Stübi, René, Tarasick, David W., Torres, Carlos

“…This study quantifies the association between the COVID‐19 economic downturn and 2020 tropospheric ozone anomalies above Europe and western North America, and…”
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Vertical Profiles of Tropospheric Ozone From MAX‐DOAS Measurements During the CINDI‐2 Campaign: Part 1—Development of a New Retrieval Algorithm by Wang, Yang, Puķīte, Janis, Wagner, Thomas, Donner, Sebastian, Beirle, Steffen, Hilboll, Andreas, Vrekoussis, Mihalis, Richter, Andreas, Apituley, Arnoud, Piters, Ankie, Allaart, Marc, Eskes, Henk, Frumau, Arnoud, Van Roozendael, Michel, Lampel, Johannes, Platt, Ulrich, Schmitt, Stefan, Swart, Daan, Vonk, Jan

“…Ground‐based measurements of tropospheric ozone (O3) are valuable for studies of atmospheric chemistry, air pollution, climate change, and for satellite…”
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Prolonged stratospheric ozone loss in the 1995-96 Arctic winter by Rex, Markus, Harris, Neil R. P, von der Gathen, Peter, Lehmann, Ralph, Braathen, Geir O, Reimer, Eberhard, Beck, Alexander, Chipperfield, Martyn P, Alfier, Reimond, Allaart, Marc, O'Connor, Fiona, Dier, Horst, Dorokhov, Valery, Fast, Hans, Gil, Manuel, Kyrö, Esko, Litynska, Zenobia, Mikkelsen, Ib Steen, Molyneux, Mike G, Nakane, Hideaki, Notholt, Justus, Rummukainen, Markku, Viatte, Pierre, Wenger, John

“…It is well established that extensive depletion of ozone, initiated by heterogenous reactions on polar stratospheric clouds (PSCs) can occur in both the Arctic…”
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Ozone column retrieval from solar UV measurements at ground level: Effects of clouds and results from six European sites by Brogniez, Colette, Houët, Mickaël, Siani, Anna Maria, Weihs, Philipp, Allaart, Marc, Lenoble, Jacqueline, Cabot, Thierry, de la Casinière, Alain, Kyrö, Esko

“…A differential absorption method, developed by the Laboratoire d'Optique Atmosphérique (LOA), is applied to retrieve the total ozone column from UV global…”
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Fifty years of balloon-borne ozone profile measurements at Uccle, Belgium: a short history, the scientific relevance, and the achievements in understanding the vertical ozone distribution by Van Malderen, Roeland, De Muer, Dirk, De Backer, Hugo, Poyraz, Deniz, Verstraeten, Willem W, De Bock, Veerle, Delcloo, Andy W, Mangold, Alexander, Laffineur, Quentin, Allaart, Marc, Fierens, Frans, Thouret, Valérie

“…Starting in 1969 and comprising three launches a week, the Uccle (Brussels, Belgium) ozonesonde dataset is one of longest and densest in the world. Moreover,…”
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Tropospheric and Stratospheric Ozone Profiles during the 2019 TROpomi vaLIdation eXperiment (TROLIX-19) by Sullivan, John T., Apituley, Arnoud, Mettiig, Nora, Kreher, Karin, Knowland, K. Emma, Allaart, Marc, Piters, Ankie, Roozendael, Michel Van, Veefkind, Pepijn, Ziemke, Jerry R., Kramarova, Natalya, Weber, Mark, Rozanov, Alexei, Twigg, Laurence, Sumnicht, Grant, McGee, Thomas J.

“…A TROPOspheric Monitoring Instrument (TROPOMI) validation campaign was held in the Netherlands based at the CESAR (Cabauw Experimental Site for Atmospheric…”
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Intercomparison of MAX-DOAS vertical profile retrieval algorithms: studies on field data from the CINDI-2 campaign by Tirpitz, Jan-Lukas, Frieß, Udo, Hendrick, François, Alberti, Carlos, Allaart, Marc, Apituley, Arnoud, Bais, Alkis, Beirle, Steffen, Berkhout, Stijn, Bognar, Kristof, Bösch, Tim, Bruchkouski, Ilya, Cede, Alexander, Chan, Ka Lok, den Hoed, Mirjam, Donner, Sebastian, Drosoglou, Theano, Fayt, Caroline, Friedrich, Martina M, Frumau, Arnoud, Gast, Lou, Gielen, Clio, Gomez-Martín, Laura, Hao, Nan, Hensen, Arjan, Henzing, Bas, Hermans, Christian, Jin, Junli, Kreher, Karin, Kuhn, Jonas, Lampel, Johannes, Li, Ang, Liu, Cheng, Liu, Haoran, Ma, Jianzhong, Merlaud, Alexis, Peters, Enno, Pinardi, Gaia, Piters, Ankie, Platt, Ulrich, Puentedura, Olga, Richter, Andreas, Schmitt, Stefan, Spinei, Elena, Stein Zweers, Deborah, Strong, Kimberly, Swart, Daan, Tack, Frederik, Tiefengraber, Martin, van der Hoff, René, van Roozendael, Michel, Vlemmix, Tim, Vonk, Jan, Wagner, Thomas, Wang, Yang, Wang, Zhuoru, Wenig, Mark, Wiegner, Matthias, Wittrock, Folkard, Xie, Pinhua, Xing, Chengzhi, Xu, Jin, Yela, Margarita, Zhang, Chengxin, Zhao, Xiaoyi

“…The second Cabauw Intercomparison of Nitrogen Dioxide measuring Instruments (CINDI-2) took place in Cabauw (the Netherlands) in September 2016 with the aim of…”
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TROPOMI tropospheric ozone column data: geophysical assessment and comparison to ozonesondes, GOME-2B and OMI by Hubert, Daan, Heue, Klaus-Peter, Lambert, Jean-Christopher, Verhoelst, Tijl, Allaart, Marc, Compernolle, Steven, Cullis, Patrick D, Dehn, Angelika, Félix, Christian, Johnson, Bryan J, Keppens, Arno, Kollonige, Debra E, Lerot, Christophe, Loyola, Diego, Maata, Matakite, Mitro, Sukarni, Mohamad, Maznorizan, Piters, Ankie, Romahn, Fabian, Selkirk, Henry B, da Silva, Francisco R, Stauffer, Ryan M, Thompson, Anne M, Veefkind, J. Pepijn, Vömel, Holger, Witte, Jacquelyn C, Zehner, Claus

“…Ozone in the troposphere affects humans and ecosystems as a pollutant and as a greenhouse gas. Observing, understanding and modelling this dual role, as well…”
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First Reprocessing of Southern Hemisphere Additional Ozonesondes (SHADOZ) Ozone Profiles (1998–2016): 2. Comparisons With Satellites and Ground‐Based Instruments by Thompson, Anne M., Witte, Jacquelyn C., Sterling, Chance, Jordan, Allen, Johnson, Bryan J., Oltmans, Samuel J., Fujiwara, Masatomo, Vömel, Holger, Allaart, Marc, Piters, Ankie, Coetzee, Gert J. R., Posny, Françoise, Corrales, Ernesto, Diaz, Jorge Andres, Félix, Christian, Komala, Ninong, Lai, Nga, Ahn Nguyen, H. T., Maata, Matakite, Mani, Francis, Zainal, Zamuna, Ogino, Shin‐ya, Paredes, Francisco, Penha, Tercio Luiz Bezerra, Silva, Francisco Raimundo, Sallons‐Mitro, Sukarni, Selkirk, Henry B., Schmidlin, F. J., Stübi, Rene, Thiongo, Kennedy

“…The Southern Hemisphere ADditional OZonesonde (SHADOZ) network was assembled to validate a new generation of ozone‐monitoring satellites and to better…”
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Validation of 10-year SAO OMI Ozone Profile (PROFOZ) product using ozonesonde observations by Huang, Guanyu, Liu, Xiong, Chance, Kelly, Yang, Kai, Bhartia, Pawan K., Cai, Zhaonan, Allaart, Marc, Ancellet, Gérard, Calpini, Bertrand, Coetzee, Gerrie J. R., Cuevas-Agulló, Emilio, Cupeiro, Manuel, De Backer, Hugo, Dubey, Manvendra K., Fuelberg, Henry E., Fujiwara, Masatomo, Godin-Beekmann, Sophie, Hall, Tristan J., Johnson, Bryan, Joseph, Everette, Kivi, Rigel, Kois, Bogumil, Komala, Ninong, König-Langlo, Gert, Laneve, Giovanni, Leblanc, Thierry, Marchand, Marion, Minschwaner, Kenneth R., Morris, Gary, Newchurch, Michael J., Ogino, Shin-Ya, Ohkawara, Nozomu, Piters, Ankie J. M., Posny, Françoise, Querel, Richard, Scheele, Rinus, Schmidlin, Frank J., Schnell, Russell C., Schrems, Otto, Selkirk, Henry, Shiotani, Masato, Skrivánková, Pavla, Stübi, René, Taha, Ghassan, Tarasick, David W., Thompson, Anne M., Thouret, Valérie, Tully, Matthew B., Van Malderen, Roeland, Vömel, Holger, von der Gathen, Peter, Witte, Jacquelyn C., Yela, Margarita

“…We validate the Ozone Monitoring Instrument (OMI) Ozone Profile (PROFOZ) product from October 2004 through December 2014 retrieved by the Smithsonian…”
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Detecting volcanic sulfur dioxide plumes in the Northern Hemisphere using the Brewer spectrophotometers, other networks, and satellite observations by Zerefos, Christos S, Eleftheratos, Kostas, Kapsomenakis, John, Solomos, Stavros, Inness, Antje, Balis, Dimitris, Redondas, Alberto, Eskes, Henk, Allaart, Marc, Amiridis, Vassilis, Dahlback, Arne, De Bock, Veerle, Diémoz, Henri, Engelmann, Ronny, Eriksen, Paul, Fioletov, Vitali, Gröbner, Julian, Heikkilä, Anu, Petropavlovskikh, Irina, Jarosławski, Janusz, Josefsson, Weine, Karppinen, Tomi, Köhler, Ulf, Meleti, Charoula, Repapis, Christos, Rimmer, John, Savinykh, Vladimir, Shirotov, Vadim, Siani, Anna Maria, Smedley, Andrew R. D, Stanek, Martin, Stübi, René

“…This study examines the adequacy of the existing Brewer network to supplement other networks from the ground and space to detect SO2 plumes of volcanic origin…”
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The Small Whiskbroom Imager for atmospheric compositioN monitorinG (SWING) and its operations from an unmanned aerial vehicle (UAV) during the AROMAT campaign by Merlaud, Alexis, Tack, Frederik, Constantin, Daniel, Georgescu, Lucian, Maes, Jeroen, Fayt, Caroline, Mingireanu, Florin, Schuettemeyer, Dirk, Meier, Andreas Carlos, Schönardt, Anja, Ruhtz, Thomas, Bellegante, Livio, Nicolae, Doina, Den Hoed, Mirjam, Allaart, Marc, Van Roozendael, Michel

“…The Small Whiskbroom Imager for atmospheric compositioN monitorinG (SWING) is a compact remote sensing instrument dedicated to mapping trace gases from an…”
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The Small Whiskbroom Imager for atmospheric compositioN monitorinG during the AROMAT campaign by Merlaud, Alexis, Tack, Frederik, Constantin, Daniel, Georgescu, Lucian, Maes, Jeroen, Fayt, Caroline, Mingireanu, Florin, Schuettemeyer, Dirk, Meier, Andreas Carlos, Schönardt, Anja, Ruhtz, Thomas, Bellegante, Livio, Nicolae, Doina, Den Hoed, Mirjam, Allaart, Marc, Van Roozendael, Michel

“…The Small Whiskbroom Imager for atmospheric compositioN monitorinG (SWING) is a compact remote sensing instrument dedicated to mapping trace gases from an…”
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OZONESONDE QUALITY ASSURANCE: The JOSIE-SHADOZ Experience: As a backbone for satellite algorithms and monitoring stratospheric ozone recovery, ozonesondes require regular evaluation, here performed by operators of the tropical SHADOZ network by Thompson, Anne M, Smit, Herman G.J, Witte, Jacquelyn C, Stauffer, Ryan M, Johnson, Bryan J, Morris, Gary, von der Gathen, Peter, Van Malderen, Roeland, Davies, Jonathan, Piters, Ankie, Allaart, Marc, Posny, Francoise, Kivi, Rigel, Cullis, Patrick, Anh, Nguyen Thi Hoang, Corrales, Ernesto, Machinini, Tshidi, Silva, Francisco R. da, Paiman, George, Thiongo, Kennedy, Zainal, Zamuna, Brothers, George B, Wolff, Katherine R, Nakano, Tatsumi, Stubi, Rene, Romanens, Gonzague, Coetzee, Gert J.R, Diaz, Jorge A, Mitro, Sukarni, Mohamad, Maznorizan, Ogino, Shin-Ya

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Validation of 10-year SAO OMI Ozone Profile by Huang, Guanyu, Liu, Xiong, Chance, Kelly, Yang, Kai, Bhartia, Pawan K, Cai, Zhaonan, Allaart, Marc, Ancellet, Gérard, Calpini, Bertrand, Coetzee, Gerrie J. R, Cuevas-Agulló, Emilio, Cupeiro, Manuel, De Backer, Hugo, Dubey, Manvendra K, Fuelberg, Henry E, Fujiwara, Masatomo, Godin-Beekmann, Sophie, Hall, Tristan J, Johnson, Bryan, Joseph, Everette, Kivi, Rigel, Kois, Bogumil, Komala, Ninong, König-Langlo, Gert, Laneve, Giovanni, Leblanc, Thierry, Marchand, Marion, Minschwaner, Kenneth R, Morris, Gary, Newchurch, Michael J, Ogino, Shin-Ya, Ohkawara, Nozomu, Piters, Ankie J. M, Posny, Françoise, Querel, Richard, Scheele, Rinus, Schmidlin, Frank J, Schnell, Russell C, Schrems, Otto, Selkirk, Henry, Shiotani, Masato, Skrivánková, Pavla, Stübi, René, Taha, Ghassan, Tarasick, David W, Thompson, Anne M, Thouret, Valérie, Tully, Matthew B, Van Malderen, Roeland, Vömel, Holger, von der Gathen, Peter, Witte, Jacquelyn C, Yela, Margarita

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Ozone column retrieval from solar UV measurements at ground level : Effects of clouds and results from six European sites by BROGNIEZ, Colette, HOUËT, Mickaël, SIANI, Anna Maria, WEIHS, Philipp, ALLAART, Marc, LENOBLE, Jacqueline, CABOT, Thierry, DE LA CASINIERE, Alain, KYRÖ, Esko

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ozone mini-hole observed over Europe, influence of low stratospheric temperature on observations by Allaart, Marc, Valks, Pieter, van der A, Ronald, Piters, Ankie, Kelder, Hennie, van Velthoven, Peter

“…A region of extreme low ozone values passed over North‐western Europe during November 30, and December 1, 1999. The total ozone values were measured from the…”
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